I have an unlocked iphone 3gs running on ios4.0. Some how it frooze and now it is in a looping recovery mode. I have failed try to use ireb and irecovery. please sugguest any other software or methods that can aid my problem. PS: i am using windows 7 64 bit and or windows xp. a mac solution would also be welcomed. thanks ahead of time. all responses are appriciated.